3651009 has 8 divisors (see below), whose sum is σ = 4986912. Its totient is φ = 2374560.

The previous prime is 3650989. The next prime is 3651019. The reversal of 3651009 is 9001563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3651009 - 2⁹ = 3650497 is a prime.

3651009 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3651009.

It is not an unprimeable number, because it can be changed into a prime (3651019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14719 + ... + 14964.

It is an arithmetic number, because the mean of its divisors is an integer number (623364).

Almost surely, 2^3651009 is an apocalyptic number.

It is an amenable number.

3651009 is a deficient number, since it is larger than the sum of its proper divisors (1335903).

3651009 is a wasteful number, since it uses less digits than its factorization.

3651009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29727.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 3651009 is about 1910.7613665762. The cubic root of 3651009 is about 153.9823586921.

The spelling of 3651009 in words is "three million, six hundred fifty-one thousand, nine".